Home / 128,308,292.60-192,469,811.70-37,445,905.40

Finding the Fourth Proportional to 128,308,292.60, 192,469,811.70 and 37,445,905.40

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Solution

The fourth proportional to 128,308,292.60, 192,469,811.70 and 37,445,905.40 is: 56,171,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,308,292.60 : 192,469,811.70 = 37,445,905.40 : x
  2. Step 2: Convert to fraction form
    128,308,292.60/192,469,811.70 = 37,445,905.40/x
  3. Step 3: Cross multiply
    128,308,292.60x = 192,469,811.70 × 37,445,905.40
  4. Step 4: Simplify right side
    128,308,292.60x = 7,207,206,361,274,012
  5. Step 5: Solve for x
    x = 7,207,206,361,274,012/128,308,292.60
  6. Step 6: Final answer
    x = 56,171,009.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.